780526

Kona 2015 Manual

36
Zoom out
Zoom in
Previous page
1/40
Next page
KONA OWNER’S MANUAL
36
2. Perspective
Today’s high-performance bicycles require frequent and
careful inspection and service. In this Appendix we try
to explain some underlying material science basics and
how they relate to your bicycle. We discuss some of the
trade-offs made in designing your bicycle and what you
can expect from your bicycle; and we provide important,
basic guidelines on how to maintain and inspect it. We
cannot teach you everything you need to know to prop-
erly inspect and service your bicycle; and that is why we
repeatedly urge you to take your bicycle to your dealer for
professional care and attention.
WARNING: Frequent inspection of your bike is
important to your safety. Follow the Mechanical Safety
Check in Section 1.C of this Manual before every ride.
Periodic, more detailed inspection of your bicycle is
important. How often this more detailed inspection is
needed depends upon you. You, the rider/owner, have
control and knowledge of how often you use your bike,
how hard you use it and where you use it. Because
your dealer cannot track your use, you must take re-
sponsibility for periodically bringing your bike to your
dealer for inspection and service. Your dealer will help
you decide what frequency of inspection and service is
appropriate for how and where you use your bike. For
your safety, understanding and communication with
your dealer, we urge you to read this Appendix in its
entirety. The materials used to make your bike deter-
mine how and how frequently to inspect. Ignoring this
WARNING can lead to frame, fork or other component
failure, which can result in serious injury or death.
A) UNDERSTANDING METALS
Steel is the traditional material for building bicycle frames.
It has good characteristics, but in high performance
bicycles, steel has been largely replaced by aluminum
and some titanium. The main factor driving this change is
interest by cycling enthusiasts in lighter bicycles.
Properties of Metals
Please understand that there is no simple statement that
can be made that characterizes the use of different met-
als for bicycles. What is true is how the metal chosen is
applied is much more important than the material alone.
One must look at the way the bike is designed, tested,
manufactured, supported along with the characteristics of
the metal rather than seeking a simplistic answer.
Metals vary widely in their resistance to corrosion. Steel
must be protected or rust will attack it. Aluminum and
Titanium quickly develop an oxide lm that protects the
metal from further corrosion. Both are therefore quite
resistant to corrosion. Aluminum is not perfectly corro-
sion resistant, and particular care must be used where it
contacts other metals and galvanic corrosion can occur.
Metals are comparatively ductile. Ductile means bending,
buckling and stretching before breaking. Generally speaking,
of the common bicycle frame building materials steel is the
most ductile, titanium less ductile, followed by aluminum
.
Metals vary in density. Density is weight per unit of mate-
rial. Steel weighs 7.8 grams/cm3 (grams per cubic cen-
timeter), titanium 4.5 grams/cm3, aluminum 2.75 grams/
cm3. Contrast these numbers with carbon ber composite
at 1.45 grams/cm3.
Metals are subject to fatigue. With enough cycles of use,
at high enough loads, metals will eventually develop
cracks that lead to failure. It is very important that you
read The basics of metal fatigue below.
Let’s say you hit a curb, ditch, rock, car, another cyclist or
other object. At any speed above a fast walk, your body
… 36 …


Need help? Post your question in this forum.

Forumrules


Report abuse

Libble takes abuse of its services very seriously. We're committed to dealing with such abuse according to the laws in your country of residence. When you submit a report, we'll investigate it and take the appropriate action. We'll get back to you only if we require additional details or have more information to share.

Product:

For example, Anti-Semitic content, racist content, or material that could result in a violent physical act.

For example, a credit card number, a personal identification number, or an unlisted home address. Note that email addresses and full names are not considered private information.

Forumrules

To achieve meaningful questions, we apply the following rules:

Register

Register getting emails for Kona 2015 at:


You will receive an email to register for one or both of the options.


Get your user manual by e-mail

Enter your email address to receive the manual of Kona 2015 in the language / languages: English as an attachment in your email.

The manual is 1.4 mb in size.

 

You will receive the manual in your email within minutes. If you have not received an email, then probably have entered the wrong email address or your mailbox is too full. In addition, it may be that your ISP may have a maximum size for emails to receive.

The manual is sent by email. Check your email

If you have not received an email with the manual within fifteen minutes, it may be that you have a entered a wrong email address or that your ISP has set a maximum size to receive email that is smaller than the size of the manual.

The email address you have provided is not correct.

Please check the email address and correct it.

Your question is posted on this page

Would you like to receive an email when new answers and questions are posted? Please enter your email address.



Info